Horn for phonographs or similar machines.



B. RUGGIERO & G. BONGIORNO. HORN FOR PHONOGRAPHS OR SIMILAR MACHINES.

APPLICATION FILED JUNE 24, 1904.

N0 MODEL.

WITNESSES IMEN 7098 We Barlolo Raggga'ero aaeia'iw Ban, bar/a0 M mPATENTED SEPT. 13, 1904.

UNITED STATES Patented September 13, 1904.

PATENT OFFICE.

HORN FOR PHONOGRAPHS OR SIMILAR MACHINES.

SPECIFICATION forming part of Letters Patent No. 770,024, datedSeptember 13, 1904.

Application filed June 24, 1904.

To all whom it may concern.-

Be it known that we, BARTOLO RUesIERo, a citizen of the United States,and GAETANO BON- GIORNO, a subject of the King of Italy, both residingin Brooklyn, in the county of Kings and State of New York, have inventedcertain new and useful Improvements in Horns for Phonographic or SimilarMachines, of which the following is a specification, such as will enablethose skilled in the art to which it appertains to make and use thesame.

This invention relates to horns for phonographic and similar machines;and the object thereof is to provide a horn for machines of this classwhich will do away with the mechanical, vibratory, and metallic soundusually produced in the operation of such machines and also produce afull, even, and continuous volume of sound, in which the articulationwill be clear, full, and distinct.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof our improvement are designated by suitable reference characters ineach of the views, and in which Figure 1 is a perspective view of ourimproved phonographic horn; Fig. 2, an end view thereof, and Fig. 3 alongitudinal section.

In the practice of our invention We provide a horn a, composed ofseparate layers of longitudinally-arranged strips a said strips beingpreferably composed of wood or similar fibrous material. In theconstruction shown three of the separate layers are employed, as shownat (L land each of said layers is composed of six of the separate andlongitudinally-arranged strips (0 The separate layers a which make upthe horn a, may be secured together at the edges by glue or in anysuitable way, and in practice said layers are preferably formedseparately and inserted into each other, or the outer layer is firstformed and the second and third layers inserted thereinto, and in thisoperation the outer surface of the second and third layers are coveredwith any suitable glue or adhesive material, and the Serial No. 213,916.(No model.)

separate parts or layers of the horn are thus securely held together andmake up, in effect, a single homogeneous construction. Instead offorming the separate layers separately and inserting one within another,as hereinbefore described, the inner layer may first be formed and theseparate longitudinal strips of the second layer secured thereon, afterwhich the separate longitudinal strips of the outer layer may be securedin position, and in eitherevent the separate layers are so connected asto break the joints thereof, as clearly shown in Figs. 1 and 2.

In the smaller end of the horn a is secured a short tube 6, which islarger at its outer than its inner end, and this tube is also composedof wood or similar fibrous material and is intended to strengthen thesmaller end of the horn, and in practice I secure on the smaller end ofthe horn a sleeve 0, which is preferably composed of metal and which isalso intended to give strength to the smaller end of the horn andfacilitate the attachment of the horn to the machine without injury tothe smaller end of the horn.

It will be understood that the general form of the horn may be the sameas other devices of this class, and the larger end thereof may bebell-shaped, if desired, and the connections of the horn with themachine is made in the usual manner.

By means of our improvement we provide a horn for the purpose specifiedwhich will produce a constant and continuous volume of sound, in whichthe articulation will be clear, full, and distinct and which will notproduce the mechanical, vibratory, and metallic sound usually producedby instruments of this class as heretofore constructed.

Our invention is not limited to the exact form of the horn, nor to thenumber of the separate layers of material employed in the constructionthereof, nor to the number of longitudinal strips in each layer, andvarious changes in and modifications of the construction hereindescribed may be made without departing from the spirit of our inventionor sacrificing its advantages.

to break joints, and the smaller end of the horn being provided with atube of fibrous mate- I5 rial which is secured therein, substantially asshown and described.

In testimony that we claim the foregoing as our invention we have signedour names, in presence of the subscribing witnesses, this 22d 20 day ofJune, 1904.

BARTOLO RUGGIERO. GAETANO BONGIORNO. Witnesses:

C. J. KLEIN, C. E. MULREANY.

